Transport of hormones: blood supply
Hormones are released from the endocrine glands directly into the bloodstream via which they travel…
MCAT® Outline
General Principles
Proteins are biomolecules made up of one or more amino acid chains (polypeptide chains), and…
Peptides and proteins: reactions
Several ways that peptides within proteins can react and be modified include the formation of…
Amino acids: description
Amino acids are the monomers (building blocks) of proteins. Each amino acid has the same…
DNA libraries
DNA libraries are extensive collections of relatively short DNA sequences that represent genome, single chromosome,…
Reflexes
A reflex action, also known as a reflex, is an involuntary and nearly instantaneous movement in…
Optical Instruments, including the human eye
Lenses are found in a huge array of optical instruments, ranging from the simple magnifying…
Lens aberration
Lens aberration is the deviation of light rays from a single focus; a defect in…
Combination of lenses
An array of simple lenses with a common axis can be used to multiply the…
Thin Lenses
A thin lens allows rays to refract but does not allow properties such as dispersion…